Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
a pericaridial and electrosurgical technology, applied in the field of electrosurgical pericaridial puncture, can solve the problems of laceration of the myocardium, increased risk, and associated risks, and achieve the effect of reducing the risk of accidental myocardial damag
Active Publication Date: 2019-01-10
BOSTON SCI MEDICAL DEVICE LTD
View PDF0 Cites 5 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
This technique, however, has various risks associated with it, the most notable of which is the laceration of the myocardium by the needle.
This risk is heightened in cases where the pericardial cavity and fluid volume is small.
The prior art includes alternative methods of accessing the pericardial cavity, but the methods described are relatively invasive and carry further risks to the patient.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023]To gain access to the pericardial cavity for performing treatment procedures, such as catheter mapping and ablation, prior art devices typically comprise needles or other traumatic puncturing members that may cause damage to the myocardium when advanced towards the heart.
[0024]The present inventors have discovered a method which provides for safely accessing the pericardial cavity of the heart of a human or animal while minimizing the risk to the heart wall. Various embodiments of the method avoid the use of rigid piercing members and the associated risks.
[0025]The method includes advancing a puncture device towards the heart from a subxiphoid region of a patient. The distal end of the puncture device is atraumatic and comprises an energy delivery device. The energy delivery device is positioned at a target site on a pericardium of the heart and energy is delivered from the energy delivery device to a tissue to create a channel to the pericardial cavity. The atraumatic distal ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
Devices and methods for providing access to the pericardial cavity while reducing risk of myocardial damage. One method includes using an apparatus to apply pressure to a parietal pericardium, retracting the apparatus, and puncturing the parietal pericardium by delivering electrical energy using a puncture device. Another method includes moving a portion of parietal pericardium away from a surface of myocardium of the heart and puncturing the parietal pericardium by delivering electrical energy using a puncture device. The methods may include a step of confirming that the puncture device is at least partially within the parietal cavity by injecting or aspirating fluid through a lumen in the puncture device or measuring the pressure or electrical impedance at the distal end of the puncture device.
Description
CROSS-REFERENCES TO RELATED APPLICATIONS[0001]The present application is a continuation of U.S. application Ser. No. 14 / 933,356, filed Nov. 5, 2015, which is a continuation in part of U.S. application Ser. No. 14 / 257,053, filed Apr. 12, 2014, issued as U.S. Pat. No. 9,179,932 which is a continuation in part of U.S. application Ser. No. 13 / 656,173, filed Oct. 19, 2012, issued as U.S. Pat. No. 8,702,692 which is a continuation-in-part of U.S. application Ser. No. 12 / 005,316, filed Dec. 27, 2007, issued as U.S. Pat. No. 8,308,720, which claims the benefit of U.S. provisional patent application 60 / 883,074, filed on Jan. 2, 2007. All of the aforementioned applications and patents are hereby incorporated by reference in their entirety.TECHNICAL FIELD[0002]The present invention relates to methods for treating the heart of a patient. More specifically, the present invention relates to methods of accessing the pericardial cavity of a patient's heart.BACKGROUND OF THE ART[0003]The pericardium...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more
Patent Type & Authority Applications(United States)